You may want to migrate from Log4j 1.x to Log4j 2, for example because of performance improvements.
But, you don’t want to rewrite all your Log4j 1.x properties file, to use them for Log4j2, you have to slightly change them.
Here is an example of Log4j 2 configuration using properties. It defines two appenders: a console appender and a rolling file appender. (You can find a full working example in my Github repo)
Don’t hesitate to send me a message if you have any issue/question.